Abstract: In this work, a reconfigurable intelligent surface (RIS)-aided millimeter wave (mmWave) multiple-input multiple-output (MIMO) cognitive radio (CR) downlink operating in the underlay mode is ...

A rocky planet in the Milky Way galaxy may have an atmosphere, raising the possibility that life could exist on its surface, according to experts. TRAPPIST-1e, a planet belonging to a collection of ...

Packing for a trip always sounds easier than it actually is. You tell yourself, “This time I’ll keep it simple,” but before you know it the suitcase is full, and you’re still standing there with an ...

PHOENIX - Conservative activist Charlie Kirk shot and killed during event at Utah university; one-year law program proposed as a solution to Arizona's legal professionals shortage; and more - here's a ...

. . . Whether we understand it or not, we are people of the cross. And so this Sunday, we take time to acknowledge it, revere it, celebrate it, and for a good reason ...

The Queensland government has abandoned a plan for light rail along the southern Gold Coast. Acting Mayor Mark Hammel says the government has "no intention" of delivering a full public transport ...

Every September 11 since 2003, two colossal pillars of blue light have illuminated the night sky, filling the gap in the skyline where the Twin Towers once stood. This art installation called Tribute ...

Scientists have developed the first-ever time crystals that are visible to the human eye, and they could one day make their way onto $100 bills. The time crystals emerge from the kinks that appear ...

An AEVEX Atlas 600 Launched Effects drone sits at Joint Base Lewis-McChord, Washington, during an Army trial event in August 2025. (US Army photo) JOINT BASE LEWIS-MCCHORD, Washington — The U.S. Army ...